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EDVVAR-D VIABD, OF LOUISVILLE, KENTUCKY, ASSIGNOR TO B. F. AVERY,

OF SAME PLACE.

IMPROVEMENT EN EXPANDING. TR-lPhE-SHOAVEL PLOWS.

Specification forming part of Letters Patent No. gld, dated December 21,1869.

.To all whom t may concern,.-

Be it known that I, EDWARD WIARD, of Louisville, in the county ofJefferson and State of Kentucky, have invented a new and usefulImprovement in Expanding Triple Shovel Flows; and I do hereby declarethat the following is a full, clear,'and eXact description thereof,which will enable others skilled in the art to make and use the same,reference being had to the accompanying drawings, forming part of thisspecification, in which- Figure l is a side view of my improved plow,part being broken away to show the construction. Fig. 2 is an under sideview of the same, parts being broken away to show the construction. Fig.3 is a detail sectional View of the same taken through the line a" x,Fig. 2. Fig. 4 is a detail sectional view of the same taken through theline y y, Fig. 1.

Si-milar letters of reference indicate corresponding parts.

My invention has for its object to furnish an improved triple-shovelplow which shall be so constructed and arranged that the shovels :may beconveniently expanded and contracted or set at any desired pitch, and atthe same time in such a way as to be securely held in any desiredposition 5 and it consists in the construction and combination ofvarious parts of the plow, as hereinafter more fully described.

A is the plow-beam, which may be made short, and to the rear end ofwhich are attached the handles B.

C are two bars, which are formed and securely bolted to each other, asshown in Fig. 2. The bars or frame C is secured to the lower side of theplow-beam A by two cross headbolts, c', passing up through the beam A,and having nuts screwed upon their upper ends. The bars C may be heldaway a little from the plow-beam A, to give space for the washers of theforward standard by the interposition of an iron plate between the saidbars and beam, as shown in Figs. l and 2. If desired, another plate maybe placed upon the lower side of the bars C for the bolts c to passthrough to support the heads of said bolts. The rear ends of the bars Care connected by a long bolt, D, and by a tube, E, through which thesaid bolt D passes. Upon the ends of the tube E are placedv two washers,F, the outer sides or faces of which are grooved or notched to receivethe ends of the bars C, so that when the nut is tightened up upon thelong bolt D the ends of the said bars C may be held securely in place.The bolt D and tube E may be made in one piece as a solid shaft, ifdesired; but I prefer to make them as described, as it enables them tobe made light, and at the same time of suitable size and strength.

G are the rear plow-standards, to thelower ends of which theshovel-plows are attached, and through the upper ends of which areformed eyes to iit upon the tube or shaft E, to which the said standardsare secured adjustably by set-screws g', as shown in Fig. 1. Thedraftstrain upon the standards G is sustained by the brace-bars H, thelower ends of which pass through holes in the lower parts of the saidstandards G, and are secured in place by nuts screwed upon their saidlower ends. To the bars G, near the plow-beam A, are bolted or otherwisesecurely attached slotted arms I, through the slots of which pass theeye-bolts J. The upper ends of the brace-rods H pass through the eyes ofthev eyebolts .I and rest in grooves formed in the outer sides of thewashers K. The washers K are slotted for the passage of the eyebolts J,so that when the nuts upon the forward ends of the said eyebolts areVtightened up the eyes of said bolts may be drawn into said slots,Securely clamping the rods H to the washers K and arms I in such a wayas to hold the said rods H securely, and at the same time in such a waythat the said rods H may be readily adjusted to change the pitch of theplows or to allow them to be spread or contracted as may be desired.

L is the forward standard, which is constructed in 'exactly the samemanner as the rear standards, G. The standard L is secured to andbetween the forward end of the bars C by the bolt M, which passesthrough said standard and bars and through the washers N, fitting uponthe eye of the said standard L, and notched upon their outer side toreceive the ends of the said bars C, as shown in Figs. 1, 2, and 3.Y Thedraft-strain upon the standard L is sustained by the brace-rod O, the

lower end of which passes through a hole in the lower part of thestandard L, where it is secured in place by a screw-nut placed upon itslower end. The upper end of the braccrod O is secured to the beam A bythe bolt l?, which passes up through a slot iu the said beam A, so thatthe pitch of the standard L may be adjusted at will.

Having thus described iny invention, I claim as new and desire to secureby Letters Patentl. The bars or frame G, constructed and scoured to theplow-beam, substantially as hcrcin shown and described, and i'or thepurpose set forth.

2. Adjustably connecting the rear plowstandards, G, to the rear ends ofthe bars or frame Cby the tube E and long bolt D, whether inade in onepiece or separate, and the washers F and set-screws g', substantially asherein shown and described, and for the purpose set forth.

3. Adjustably securing` the forward standard, L, to the forward ends ofthe bars or frame C, by ineans of the washers N and bolt M,substantially as herein shown and described, and for the purpose setforth.

4. The notched washers F N, constructed substantially as herein shownand described, when used for securing the plow-standards in place, asand for the purpose set forth.

5. The combination of the slotted and grooved washers K, eyebolts J, andslotted arms I with the brace-rods I-I and bars or frame C,substantially as herein shown and described, and for the purpose setforth.

Witnesses:

SAML. L. AVERY, JNO. A. M. MULLTN.

